| 26.7.1958 | MCMC Oulton Park [Closed] | 2 | | Bill Allen | Bill Allen | DNA |
| 26.7.1958 | MCMC Oulton Park [Sports] | 20 | D-type | Reg Harris | J. C. Broadhead | 2nd |
| 26.7.1958 | MCMC Oulton Park [Closed] | 98 | XK120 | J. M. Bramall | Bramall | 2nd |
| 26.7.1958 | MCMC Oulton Park [Formula Libre] | 98 | XK120 | J. M. Bramall | Bramall | raced |
| 26.7.1958 | MCMC Oulton Park [Closed] | 104 | XK140 | | | raced |
| 27.7.1958 | Snetterton | 76 | D-type | | | raced |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 1 | XK120 | Robert Beale | Robert Beale, Jr. | DNA |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 29 | | Al Laws | Al Laws | DNA |
| 3.8.1958 | SCCA Regional Shelton [S+1.5] | 51 | D-type | Jim Rattenbury | | DNA |
| 3.8.1958 | Preliminary Minden [Corvette+Porsche+Jaguar] | 100 | D-type | Ray Seher | Ray Seher | ?th |
| 3.8.1958 | SCCA Regional Minden [BM+CM+DM+EM] | 100 | D-type | Ray Seher | Ray Seher | DNA |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 105 | XK120 Roadster | George Heaney | George Heaney | 9th |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 185 | XK140 | Floyd Shannon | Floyd Shannon | DNA |
| 3.8.1958 | SCCA Regional Minden [BP+CP+DP+EP] | 204 | XK140 M | Clarence Seher | Clarence Seher | DNA |
| 4.8.1958 | NSCC Mallory Park [Formula Libre] | 48 | D-type | Jim Clark | Border Reivers | 2nd |
| 4.8.1958 | NSCC Mallory Park [S+1.5] | 48 | D-type | Jim Clark | Border Reivers | 1st |
| 4.8.1958 | Autosport Mallory Park [PS+1.0] | 52 | XK120 | Peter Sargent | P. J. Sargent | DNA |
| 4.8.1958 | NSCC Mallory Park [S+1.5] | 52 | XK120 | Peter Sargent | P. J. Sargent | 3rd |
| 4.8.1958 | BRSCC Brands Hatch [S+1.9] | 81 | D-type | Jonathan Sieff | Jonathan Sieff | 6th |
| 4.8.1958 | BRSCC Brands Hatch [S+1.9] | 82 | C-type | Mike Salmon | Mike Salmon | raced |
| 4.8.1958 | BRSCC Brands Hatch [S+1.9] | 83 | C-type | Gordon Lee | Gordon Lee | raced |
| 10.8.1958 | WECC Snetterton | | C-type | Mike Salmon | | ?th |
| 16.8.1958 | Harewood Acres [Le Mans] | 8 | | Arvid J. Bradley | Arvid J. Bradley | DNA |
| 16.8.1958 | Harewood Acres [CP+DP] | 8 | | Arvid J. Bradley | Arvid J. Bradley | DNA |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 17 | XK150 S | Howard Quick | | 11th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 22 | XK140 MC | Tom Schelble | | 23rd |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 31 | XK140 MC | Dave Causey | | 14th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 34 | XK150 S | Thurman Smock | | 12th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 43 | XK140 MC | Dick Yoder | | 15th |
| 16.8.1958 | Harewood Acres [CP+DP] | 73 | XKSS | Don Stewart | Donald P. Stewart | 1st |
| 16.8.1958 | Harewood Acres [Le Mans] | 73 | XKSS | Don Stewart | Donald P. Stewart | 4th |
| 16.8.1958 | Harewood Acres [CP+DP] | 84 | XKSS | Ray Carter | Carter British Cars | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 84 | XKSS | Ray Carter | Carter British Cars | DNA |
| 16.8.1958 | Harewood Acres [Le Mans] | 88 | XK120 | Ken Umpenhour | Astrid Umpenhour | DNA |
| 16.8.1958 | Harewood Acres [CP+DP] | 88 | XK120 | Ken Umpenhour | Astrid Umpenhour | ?th |
| 16.8.1958 | Harewood Acres [Le Mans] | 106 | Special | Rodger Dowd | R. Dowd | DNA |
| 16.8.1958 | Harewood Acres [SR] | 106 | Special | Rodger Dowd | R. Dowd | ?th |
| 16.8.1958 | SCCA National Milwaukee [BM+CM+DM+EM+FM+GM] | 107 | XKSS | Tossie Alex | | 14th |
| 16.8.1958 | SCCA National Milwaukee [BP+CP+DP+EP] | 174 | | Roy Fleischman | | 20th |
| 17.8.1958 | SCCA National Montgomery [BP+CP] | 19 | XK150 S | Bob Grossman | | 4th |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 52 | C-type | Gordon MacKenzie | Gordon MacKenzie | 6th |
| 17.8.1958 | SCCA National Montgomery [BP+CP] | 67 | XK150 S | Louis Hatcher | | 7th |
| 17.8.1958 | SCCA National Montgomery [BP+CP] | 80 | XK150 S | Harry Carter | | 2nd |
| 17.8.1958 | SCCA National Montgomery [BP+CP] | 127 | XK150 S | Andrew Nicholas | | DNF |
| 17.8.1958 | SCCA National Montgomery [BM+CM+DM+EM] | 149 | D-type | George Constantine | | DNF |
| 23.8.1958 | LASC Green Acres [Unrestricted] | 73 | XKSS | Don Stewart | D. P. Stewart | DNA |
| 23.8.1958 | LASC Green Acres [S+2.0] | 73 | XKSS | Don Stewart | D. P. Stewart | DNA |
| 23.8.1958 | LASC Green Acres [Le Mans] | 73 | XKSS | Don Stewart | D. P. Stewart | DNA |
| 23.8.1958 | BARC Goodwood [Handicap A] | | 3.8 | J. B. L. Jacobs | | 3rd |
| 23.8.1958 | BARC Goodwood [Handicap A] | | XK150 | Miss Rosemary Massey | | 1st |
| 30.8.1958 | NSCC Silverstone [S+2.7] | 31 | | Bill Allen | Curtis Smith Racing Team | DNA |
| 30.8.1958 | Novice Mansfield [S+1.6] | 49 | XK120 M | Lee L. Brown | Lee L. Brown | DNA |
| 30.8.1958 | Novice Mansfield [S+1.6] | 55 | XK150 Coupe | Gene Conant | Gene Conant | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 58 | C-type | Gil Tyrer | G. Tyrer | DNA |
| 30.8.1958 | NSCC Silverstone [S+2.7] | 58 | C-type | Gil Tyrer | G. Tyrer | DNA |
| 30.8.1958 | NSCC Silverstone [S+2.7] | 61 | C-type | Mike Salmon | M. Salmon | DNA |
| 30.8.1958 | NSCC Silverstone [Formula Libre Heat 2] | 61 | C-type | Mike Salmon | M. Salmon | DNA |
| 31.8.1958 | Courtland Trophy | 10 | D-type | Ed Rahal | | 1st |
| 31.8.1958 | Courtland [CM+DM+EM+FM+BP+CP+DP+EP] | 10 | D-type | Ed Rahal | | 3rd |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 49 | XK120 M | Lee L. Brown | Lee L. Brown | DNA |
| 31.8.1958 | SCCA Regional Mansfield [BP+CP+DP+EP+FP] | 49 | XK120 M | Lee L. Brown | Lee L. Brown | DNA |
| 31.8.1958 | Preliminary Thompson [BM+CM+DM+EM] | 52 | C-type | Gordon MacKenzie | | 10th |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 55 | XK150 Coupe | Gene Conant | Gene Conant | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 55 | XK150 Coupe | Gene Conant | Gene Conant | DNA |
| 31.8.1958 | Santa Barbara [BP+CP+DP] | 80 | XK120 | James Matthews | | DNF |
| 31.8.1958 | Preliminary Thompson [BP+CP] | 80 | XK150 S | Harry Carter | | 5th |
| 31.8.1958 | Preliminary Thompson [BP+CP] | 99 | XK150 S | Bob Grossman | | 6th |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 112 | C-type | Mason O'Keiff | G. Mason O'Keiff | DNA |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 112 | C-type | Mason O'Keiff | G. Mason O'Keiff | DNA |
| 31.8.1958 | SCCA Regional Mansfield [CM+DM+EM+FM+GM+UR] | 116 | XKSS | Bob Stonedale | Bob Stonedale | DNA |
| 31.8.1958 | Preliminary Mansfield [CM+DM+EM+BP+CP+UR] | 116 | XKSS | Bob Stonedale | Bob Stonedale | DNA |
| 31.8.1958 | Santa Barbara [BM+CM+DM] | 127 | D-type | Bill Krause | | DNF |
| 31.8.1958 | Santa Barbara [BM+CM+DM] | 204 | Special | Don Hulette | | 9th |
| 31.8.1958 | Deer Park [CM+DM+EM] | | D-type | Jim Rattenbury | | 1st |
| 31.8.1958 | Courtland Trophy | | D-type | C. K. Thompson | | 2nd |
| 31.8.1958 | Courtland [CM+DM+EM+FM+BP+CP+DP+EP] | | D-type | C. K. Thompson, Jr. | | DNF |
| 1.9.1958 | SCCA National Thompson [BM+CM+DM+EM+FM] | 52 | C-type | Gordon MacKenzie | | 11th |
| 1.9.1958 | SCCA National Thompson [BP+CP+DP] | 80 | XK150 S | Harry Carter | | 3rd |
| 1.9.1958 | SCCA National Thompson [BP+CP+DP] | 99 | XK150 S | Bob Grossman | | 4th |
| 1.9.1958 | St. Eugene [S+1.6] | | XKSS | Stan McRobert | | 1st |
| 1.9.1958 | St. Eugene [Formula Libre] | | XK120 | Fred Richardson | | 2nd |
| 1.9.1958 | St. Eugene [Formula Libre] | | XKSS | Stan McRobert | | 1st |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 3 | XK150 S | Dave Causey | | 5th |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 17 | XK150 S | Howard Quick | | 17th |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 23 | XK120 | Dick Yoder | | 29th |
| 6.9.1958 | Sunbac Silverstone [S+1.5] | 33 | D-type | Gerry Ashmore | | 2nd |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 34 | XK150 S | Thurman Smock | | 10th |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 55 | XK140 MC | Schelble / Rediske | | 27th |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 59 | XK150 S | Joseph Concannon | | DNS |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 69 | XK120 | Jack Shaver | | DNA |
| 6.9.1958 | SCCA National Road America [BP+CP+DP+EP] | 74 | XK120 | Roy Fleischman | | 26th |
| 6.9.1958 | Sunbac Silverstone [Hadicap 2] | | C-type | Mike Salmon | | raced |
| 6.9.1958 | Sunbac Silverstone [Formula Libre Handicap] | | D-type | Gerry Ashmore | | 2nd |
| 6.9.1958 | Sunbac Silverstone [S+1.5] | | C-type | Mike Salmon | | 3rd |
| 6.9.1958 | Sunbac Silverstone [Production] | | | | | raced |
| 6.9.1958 | Sunbac Silverstone [S+1.5] | | C-type | A. C. Barrett-Greene | | 4th |
| 6.9.1958 | Sunbac Silverstone [Hadicap 3] | | C-type | A. C. Barrett-Greene | | DNF |
| 7.9.1958 | USAC Lime Rock | 6 | D-type | Marshall Teague | | 13th |
| 7.9.1958 | USAC Lime Rock | 8 | D-type | Jack Ensley | | 11th |
| 7.9.1958 | GP Leopoldville | 16 | XK150 | Phil Zwick | | 5th |